Sink drains of six intensive care units (ICUs) were sampled for screening contamination with extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBLE). A high prevalence (59.4%) of sink drain contamination was observed. Analysing the data by ICU, the ratio 'number of ESBLE species isolated in sink drains/total number of sink drains sampled' was highly correlated (Spearman coefficient: 0.87; P = 0.02) with the ratio 'number of hospitalization days for patients with ESBLE carriage identified within the preceding year/total number of hospitalization days within the preceding year'. Concurrently, the distribution of ESBLE species differed significantly between patients and sink drains.

中文翻译：

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重症监护病房中的广谱β-内酰胺酶肠杆菌科（ESBLE）：与患者但不是同一物种的ESBLE定植压力有很强的相关性。

对六个重症监护病房（ICU）的水槽排水进行采样，以筛选产生超广谱β-内酰胺酶的肠杆菌科细菌（ESBLE）的污染。观察到水槽排水污染的患病率很高（59.4％）。通过ICU分析数据，“分离出的ESBLE物种数/采样的下沉总数”之比与“ ESBLE患者住院天数”之比高度相关（Spearman系数：0.87； P = 0.02）。前一年内确定的运输/前一年内住院天数总计”。同时，患者和水槽排水口之间的ESBLE物种分布也存在显着差异。